Cycle tests on the UT-3 hydrogen production process on iron related reactions in a packed bed reactor

Abstract

Cycle reactions of the UT-3 between bromination of magnetite and hydrolysis of ferrous bromide in the reaction pellet were studied with packed bed reactor. (1) In the early stage of the bromination, some delaying was observed in the production of Br₂. The delay was shortened as the number of the cycle proceeded. (2) H₂ and HBr were produced steadily and stoichiometrically in the hydrolysis. (3) About 50% of produced Br₂ was shown to be trapped in the bed during the bromination, and the trapped Br₂ was released by purge with N₂. A new type reactor was proposed,which enables to separate Br₂ and HBr using trapped Br₂, effectively.